<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<script type="text/javascript">
			var num = prompt("请输入分数：")
			if (num>=60) {
				alert("及格")
			} else{
				alert("不及格")
			}
		</script>
	</body>
</html>
